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John R Trible, MD

Ophthalmology Physician in Marshalltown, IA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1104818939

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Registry record

Entity type Individual (Type 1)
Name John R Trible
Credential MD
Sex Male
Practice address 309 E Church St, Marshalltown, IA, 50158
Phone (641) 754-6200
Fax (515) 223-5468
Enumeration date Aug 18, 2005
Last updated in NPPES Feb 15, 2018

Taxonomy & licenses

207WX0009X Glaucoma Specialist (Ophthalmology) Physician Allopathic & Osteopathic Physicians · License 32730 (IA) Secondary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 32730 (IA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
180034728 Other IA RAILROAD MEDICARE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does John Trible practice?
The practice location on file with NPPES is in Marshalltown, IA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Trible?
The National Provider Identifier (NPI) for John Trible is 1104818939, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-15.